Fullstack Engineer

• Job ID:

J52374
- Job Title:

Fullstack Engineer
- Location:

Sunnyvale, CA
- Duration:

12 Months + Extension
- Hourly Rate:

Depending on Experience (DOE)
- Work Authorization:

US Citizen, Green Card, OPT-EAD, CPT, H-1B,
H4-EAD, L2-EAD, GC-EAD
- Client:

To Be Discussed Later
- Employment Type:

W-2, 1099, C2C

We are looking for a highly skilled Full-Stack Engineer who can build and maintain production-grade web applications while also designing and implementing AI-powered agents using LangChain and LangGraph.

Responsibilities

• Design, develop, and maintain full-stack web applications using React (frontend) and Python (backend)
• Build scalable, secure, and production-ready APIs and backend services
• Implement AI agents and intelligent workflows using LangChain and LangGraph
• Integrate LLMs into applications, including tool-calling, memory, and multi-step reasoning
• Design and implement RAG-based solutions using embeddings and vector databases
• Orchestrate agent state, control flow, and execution using LangGraph
• Ensure code quality through testing, code reviews, and best engineering practices

• Strong experience in React (modern hooks, component design, state management) and Python (FastAPI / Flask / Django)
• Solid understanding of full-stack architecture, REST APIs, and backend development
• Hands-on experience with LangChain for LLM application development
• Hands-on experience with LangGraph for building and orchestrating AI agents
• Experience integrating LLM APIs (OpenAI, Anthropic, etc.)
• Knowledge of RAG architectures, embeddings, and vector databases
• Proficiency with Git, version control, and collaborative development workflows

Equal Opportunity Employer

ROBOTICS TECHNOLOGIES LLC is an equal opportunity employer inclusive of female, minority, disability and veterans, (M/F/D/V). Hiring, promotion,